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arXiv nucl-th/0503003nucl-th
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热膨胀:价夸克近似之外

Thermal Recombination: Beyond the Valence Quark Approximation

B. Muller, R. J. Fries, S. A. Bass

摘要:

由复合模型导出的夸克计数规则与相对论性重离子碰撞中横动量强子产生的数据吻合得很好。它们传达了一种简单的强子图像,即强子只由价夸克组成。我们讨论了包含更高的福克态,增加海夸克和胶子的强子结构。我们表明,当发生重组从热介质,强子谱保持不受较高的福克态的列入。然而,椭圆流的夸克数标度有些影响。我们讨论的影响,我们理解的数据从相对论重离子对撞机。

英文摘要:

Quark counting rules derived from recombination models agree well with data on hadron production at intermediate transverse momenta in relativistic heavy-ion collisions. They convey a simple picture of hadrons consisting only of valence quarks. We discuss the inclusion of higher Fock states that add sea quarks and gluons to the hadron structure. We show that, when recombination occurs from a thermal medium, hadron spectra remain unaffected by the inclusion of higher Fock states. However, the quark number scaling for elliptic flow is somewhat affected. We discuss the implications for our understanding of data from the Relativistic Heavy Ion Collider.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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